Manufacturing method of combined uniform pressure cover for ω long truss reinforced composite wall panels
A technology of composite material and manufacturing method, which is applied in the manufacturing field of combined uniform pressure cover plate, to achieve the effects of avoiding fiber wrinkles, ensuring molding quality and improving molding quality
Active Publication Date: 2022-04-08
SHENYANG AIRCRAFT CORP
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- Claims
- Application Information
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Problems solved by technology
[0005] The object of the present invention is to provide a kind of manufacturing method of the composite uniform pressure cover plate that is used for Ω long truss reinforced composite material wall plate, to solve the above-mentioned problem existing in the prior art
Method used
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Embodiment
[0031] Such as figure 1 As shown, the Ω long truss-reinforced composite wall panels in this embodiment are about 3 meters long and about 2 meters wide, and the combined uniform pressure cover plate used for the Ω long truss-reinforced composite material wall panels includes split cover plates 7 and the small cover plate 10 of the end, the specific preparation method is as follows:
[0032] 1. Preparation of split cover plate 7
[0033] 1) Obtain the split cover plate process surface 2 that is the same as the inner surface of the Ω long stringer reinforced wall plate 1, divide it into three pieces, and the splicing seam of the split cover plate process surface 2 is parallel to the direction of the Ω stringer 3, And adopt concavo-convex matching patchwork 4, and set boss rib 5. Simultaneously, at the end of the Ω long stringer 3 of the split cover plate process surface 2, do the small cover plate 10 occupying treatment at the end, and the height of the occupying platform 6 is ...
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Abstract
The invention belongs to the technical field of composite material component manufacturing technology, and in particular relates to a method for manufacturing a combined uniform pressure cover plate used for Ω long truss-reinforced composite material wall plates. The manufacturing method of the combined uniform pressure cover plate used for the Ω stringer reinforced composite wall plate provided by the present invention adopts the split cover plate form, and the split cover plate adopts an open design at the end of the Ω stringer, and at the same time The small cover plate of the terminal is set to cooperate with it. The Ω-long truss-reinforced wall plate combined uniform pressure cover plate obtained by the manufacturing method provided by the present invention solves the problem that the large-size, large-curvature composite cover plate is easy to spring back and deform after curing, and ensures the steps under the complex profile The pressure effect at the step avoids the internal defects such as pores and delamination caused by the mismatch of the profile at the step.
Description
technical field [0001] The invention belongs to the technical field of composite material component manufacturing technology, and in particular relates to a method for manufacturing a combined uniform pressure cover plate used for Ω long truss-reinforced composite material wall plates. Background technique [0002] Composite truss-reinforced panels are widely used in primary and secondary load-bearing structures of aerospace due to their high strength and high stiffness. The edge and the skin can form a closed section, which has high compression stability, can withstand high loads, and has good impact resistance. It has been widely used in aircraft fuselage and wing structures, such as COMAC C919 and Boeing B787 , Airbus A350, etc. [0003] The internal surface of the Ω long truss reinforced wall plate is a multi-step structure, and the uniform pressure cover plate is generally required for female molding to ensure that the parts are evenly compressed and the surface is acc...
Claims
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IPC IPC(8): B29C70/34B29C70/54B29L31/30
CPCB29C70/342B29C70/54B29C70/541B29C70/543B29L2031/3082B29L2031/3085
Inventor翟晶唐文峰黄炎
OwnerSHENYANG AIRCRAFT CORP